<template>
  <template v-if="getShow">
    <LoginFormTitle class="enter-x" />
    <div class="enter-x min-w-64 min-h-64">
      <QrCode :value="qrCodeUrl" class="enter-x flex justify-center xl:justify-start" :width="280" />
      <Divider class="enter-x">{{ scanContent }}</Divider>
      <Button size="large" block class="mt-4 enter-x" @click="handleBackLogin">
        {{ t('sys.login.backSignIn') }}
      </Button>
    </div>
  </template>
</template>
<script lang="ts" setup>
  import { computed, onMounted, unref, ref, watch } from 'vue'
  import LoginFormTitle from './LoginFormTitle.vue'
  import { Button, Divider } from 'ant-design-vue'
  import { QrCode } from '/@/components/Qrcode/index'
  import { useUserStore } from '/@/store/modules/user'
  import { useI18n } from '/@/hooks/web/useI18n'
  import { useLoginState, LoginStateEnum } from './useLogin'
  import { getLoginQrcode, getQrcodeToken } from '/@/api/sys/user'
  const qrCodeUrl = ref('')
  let timer: IntervalHandle
  const { t } = useI18n()
  const userStore = useUserStore()
  const { handleBackLogin, getLoginState } = useLoginState()
  const state = ref('0')
  const getShow = computed(() => unref(getLoginState) === LoginStateEnum.QR_CODE)
  const scanContent = computed(() => {
    return unref(state) === '0' ? t('sys.login.scanSign') : t('sys.login.scanSuccess')
  })
  //加载二维码信息
  function loadQrCode() {
    state.value = '0'
    getLoginQrcode().then((res) => {
      qrCodeUrl.value = res.qrcodeId
      if (res.qrcodeId) {
        openTimer(res.qrcodeId)
      }
    })
  }
  //监控扫码状态
  function watchQrcodeToken(qrcodeId) {
    getQrcodeToken({ qrcodeId: qrcodeId }).then((res) => {
      let token = res.token
      if (token == '-2') {
        //二维码过期重新获取
        loadQrCode()
        clearInterval(timer)
      }
      //扫码成功
      if (res.success) {
        state.value = '2'
        clearInterval(timer)
        setTimeout(() => {
          userStore.qrCodeLogin(token)
        }, 500)
      }
    })
  }

  /** 开启定时器 */
  function openTimer(qrcodeId) {
    watchQrcodeToken(qrcodeId)
    closeTimer()
    timer = setInterval(() => {
      watchQrcodeToken(qrcodeId)
    }, 1500)
  }

  /** 关闭定时器 */
  function closeTimer() {
    if (timer) clearInterval(timer)
  }

  watch(getShow, (v) => {
    if (v) {
      loadQrCode()
    } else {
      closeTimer()
    }
  })
</script>
